The internet, the revolutionary communications system that has transformed billions of lives globally has turned 30 today. The computer network officially began when it fully substituted previous networking systems on January 1, 1983.
Known as "flag day", it was the first time the US Department of Defence (DoD)-commissioned Arpanet network fully switched to using the Internet Protocol Suite (IPS) communications system. Using data "packet-switching", the new method of linking computers paved the way for the World Wide Web. Without it, the internet and the world wide web could not have happened. The internet means there is nowhere and none in the world you can't reach with ease and at low cost.
Based on designs by Welsh scientist Donald Davies, the Arpanet network began as a military project in the late 1960s. It was developed at prestigious American universities and research laboratories, such as the University of California, Los Angeles (UCLA) and the Stanford Research Institute.